<template>
	<!-- 判断这个对象,是不是一个空值,如果等于0就是一个空值,就不渲染出来 -->
	<div v-if="Object.keys(detailInfo).length !== 0" class="goods-info">
	  <div class="info-desc clear-fix">
	    <div class="start">
	    </div>
	    <div class="desc">{{detailInfo.desc}}</div>
	    <div class="end"></div>
	  </div>
	  <div class="info-key">{{detailInfo.detailImage[0].key}}</div>
	  <div class="info-list">
	    <img v-for="(item, index) in detailInfo.detailImage[0].list" :key="index" :src="item"  alt="" @load="imgLoad">
	  </div>
	</div>
</template>

<script>
	export default{
		name:'DetailGoodsInfo',
		props:{
			detailInfo:{
				type:Object,
				default(){
					return {}
				}
			}
		},
		data(){
			return{
				counter: 0,
				imgageLength: 0
			}
		},
		methods:{
			imgLoad(){
				//判断，所有的图片都加载完了，那么进行一次回调就可以了
				if (++this.counter === this.imgageLength) {
					this.$emit('imageLoad')
				}
			}
		},
		watch: {
			detailInfo(){
				//获取图片的个数
				this.imgageLength = this.detailInfo.detailImage[0].list.length
			}
		}
	}
</script>

<style scoped>
	.goods-info {
	  padding: 20px 0;
	  border-bottom: 5px solid #f2f5f8;
	}
	
	.info-desc {
	  padding: 0 15px;
	}
	
	.info-desc .start, .info-desc .end {
	  width: 90px;
	  height: 1px;
	  background-color: #a3a3a5;
	  position: relative;
	}
	
	.info-desc .start {
	  float: left;
	}
	
	.info-desc .end {
	  float: right;
	}
	
	.info-desc .start::before, .info-desc .end::after {
	  content: '';
	  position: absolute;
	  width: 5px;
	  height: 5px;
	  background-color: #333;
	  bottom: 0;
	}
	
	.info-desc .end::after {
	  right: 0;
	}
	
	.info-desc .desc {
	  padding: 15px 0;
	  font-size: 14px;
	}
	
	.info-key {
	  margin: 10px 0 10px 15px;
	  color: #333;
	  font-size: 15px;
	}
	
	.info-list img {
	  width: 100%;
	}
</style>
